PHP 傳送POST使用fsockopen 取代CURL 取得回應

很實用的文章

//接收POST參數的URL
$url = 'http://www.google.com';
//POST參數,在這個陣列裡,索引是name,值是value,沒有限定組數
$postdata = array('post_name'=>'post_value','acc'=>'hsin','nick'=>'joe');
//函式回覆的值就是取得的內容
$result = sendpost($url,$postdata);

function sendpost($url, $data){
//先解析url 取得的資訊可以看看http://www.php.net/parse_url
$url = parse_url($url);
if(!$url) return "couldn't parse url";
//對要傳送的POST參數作處理
$encoded = "";
while(list($k,$v)=each($data)){
$encoded .= ($encoded?"&":'');
$encoded .= rawurlencode($k)."=".rawurlencode($v);
}
//開啟一個socket
$fp = fsockopen($url['host'],($url['port']?$url['port']:80));
if(!$fp) return "Failed to open socket to ".$url['host'];
//header的資訊
fputs($fp,'POST '.$url['path'].($url['query']?'?'.$url['query']:'')." HTTP/1.0rn");
fputs($fp,"Host: ".$url['host']."n");
fputs($fp,"Content-type: application/x-www-form-urlencodedn");
fputs($fp,"Content-length: ".strlen($encoded)."n");
fputs($fp,"Connection: closenn");
fputs($fp,$encoded."n");
//取得回應的內容
$line = fgets($fp,1024);
if(!eregi("^HTTP/1.. 200", $line)) return;
$results = "";
$inheader = 1;
while(!feof($fp)){
$line = fgets($fp,2048);
if($inheader&&($line == "n" || $line == "rn")){
$inheader = 0;
}elseif(!$inheader){
$results .= $line;
}
}
fclose($fp);
return $results;
}

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